Heating System Problems
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Joined: Dec 1999
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Heating System Problems
We had our first really cold snap (down in the high 20's)here in Texas this week. I noted the next morning that the heater in my 93 XLT Supercab wasn't working well. After about 30 minutes of running it started blowing warm air but not as hot as it should. The temp gauge didn't seem to rise quite as high as it usually does. Today I spent three hours on the road. The heater did eventually blow warm air but not as hot as it usually does. The temp gauge needle kept oscillating back and forth a little but was well within the normal range.
The engine runs fine. The cooling system is full and was completely flushed this summer when I put in a new heater core. There is absolutely no evidence of a fluid leak. Interestingly enough I tried to turn the AC on (just to check the entire system) and I am not sure the clutch is engaging. I don't hear the normal "click" I hear and I don't sense the engine RPM increasing.
Any ideas? I began to wonder if it was just so cold and wet that the enigne never ran hot enough to really get the coolant hot but that doesn't make sense. Maybe some of you guys up North that deal with cold weather more often have some ideas.
John
The engine runs fine. The cooling system is full and was completely flushed this summer when I put in a new heater core. There is absolutely no evidence of a fluid leak. Interestingly enough I tried to turn the AC on (just to check the entire system) and I am not sure the clutch is engaging. I don't hear the normal "click" I hear and I don't sense the engine RPM increasing.
Any ideas? I began to wonder if it was just so cold and wet that the enigne never ran hot enough to really get the coolant hot but that doesn't make sense. Maybe some of you guys up North that deal with cold weather more often have some ideas.
John
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Joined: Dec 2000
Posts: 3
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Heating System Problems
I never read your entire message, but...
Let me guess 4.0L V6 engine?
I have the 4.0L V6 in my 1997 ranger.
My Dad has a 4.0L V6 in his 1997 explorer.
Same engine.
Both of us had to replace the thermostat valve (I think that's what it's called?).
Canadian tire...$20.
I'm thinking there was a batch of el-cheap-o thermostats at Cologne Engine plant in Germany where the engines are made.
Let me guess 4.0L V6 engine?
I have the 4.0L V6 in my 1997 ranger.
My Dad has a 4.0L V6 in his 1997 explorer.
Same engine.
Both of us had to replace the thermostat valve (I think that's what it's called?).
Canadian tire...$20.
I'm thinking there was a batch of el-cheap-o thermostats at Cologne Engine plant in Germany where the engines are made.
